EP2771072A1 - Composition de soins d'hygiène personnelle photoprotectrice aqueuse - Google Patents

Composition de soins d'hygiène personnelle photoprotectrice aqueuse

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Publication number
EP2771072A1
EP2771072A1 EP12770470.8A EP12770470A EP2771072A1 EP 2771072 A1 EP2771072 A1 EP 2771072A1 EP 12770470 A EP12770470 A EP 12770470A EP 2771072 A1 EP2771072 A1 EP 2771072A1
Authority
EP
European Patent Office
Prior art keywords
composition
sunscreen
weight
base
siloxane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12770470.8A
Other languages
German (de)
English (en)
Other versions
EP2771072B1 (fr
Inventor
Ashish Anant VAIDYA
Nilmoni Ghosh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP12770470.8A priority Critical patent/EP2771072B1/fr
Publication of EP2771072A1 publication Critical patent/EP2771072A1/fr
Application granted granted Critical
Publication of EP2771072B1 publication Critical patent/EP2771072B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/35—Ketones, e.g. benzophenone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41—Amines
    • A61K8/415—Aminophenols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/494—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
    • A61K8/4966—Triazines or their condensed derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
    • A61K8/585—Organosilicon compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations

Definitions

  • the invention relates to a sunscreen composition, especially to one that provides good UVA and UVB sun protection in a silicone elastomer base composition.
  • Solar radiation includes about 5 % ultraviolet (UV) radiation, wavelength of which is between 200 nm and 400 nm. It is further classified into three regions: from 320 to 400 nm (UV-A), 290 to 320 nm (UV-B) and from 200 to 290 nm (UV-C). Exposure to UV-A and UV-B radiation for short period is known to cause reddening of the skin and localized irritation. Continued and prolonged exposure can lead to sunburn, melanoma and formation of wrinkles. It is also reported that UV radiation causes significant damage to hair. Therefore people desire to protect their skin and hair from the harmful effects of both UV-A and UV-B radiation.
  • UV-A and UV-B sunscreens are usually incorporated in photoprotective compositions so as to provide protection over the entire range of UV radiation.
  • Sun protection Factor (SPF) and UV-A protection factor (UVAPF) are commonly measured attributes of photoprotective compositions which indicate the protection that the skin gets from exposure to both UV-B and UV-A radiation.
  • the present inventors have been working on achieving high SPF in photoprotective composition comprising a silicone elastomer base, especially in water-in-oil emulsion compositions.
  • the present inventors seek to achieve high SPF/ UVAPF, i.e. higher than 10 SPF and higher than 2 UVAPF values, with use of relatively small amounts of sunscreens. They have been working to invent sunscreen compositions which achieve these high values with total organic sunscreens of less than 15 %, preferably less than 10 %, and optimally less than 7 % by weight of the composition.
  • inclusion of UV-B sunscreens in such compositions were possible with the
  • compositions exhibiting high stability.
  • UV-A sunscreens were sought to be incorporated in such compositions, they tended to be unstable in the emulsion and were seen to crystallize out over a period of few weeks or months on storage.
  • the present inventors have unexpectedly determined that UV-A sunscreens could be incorporated along with UV-B sunscreens or a broad spectrum sunscreen having both UV-A and UV-B functionality could be incorporated, at the abovementioned low amounts, to achieve these high SPF/ UVAPF values by including a specific class of emollients meeting a desired solubility parameter along with select class of volatile silicones meeting a desired vapour pressure and heat of vapourisation conditions, in such silicone elastomer based compositions.
  • US 2009/185989 discloses a cosmetic sun protection product based on water in silicone emulsions which includes 22-32 weight percent of a volatile cyclic silicone oil, 2.0-4.0 weight percent of a non-volatile silicone elastomer, 0.9-2.8 weight percent of an emulsifier, 0.1 -0.5 weight percent of an amino acid/fatty acid copolymer, 19-24 weight percent of a mixture of organic UVA and UVB filters at a ratio of from 1 :1 .5 to 1 :1 ; and cosmetic adjuvants, excipients, active substances and mixtures thereof to make 100 weight percent, the Brookfield viscosity of the sun protection product ranging from 3,000 to 20,000 mPas.
  • EP2100583 discloses a cosmetic foundation in the form of a water-in-silicone emulsion characterized in that the preparation comprises (a) at least one particulate photoprotective filter (b) one or more further selected UV photoprotective filter selected from a particular group and (c) one or more dyes and/ or pigments.
  • the amount of emollient disclosed is not sufficient to solubilise the oily components thereby providing the high SPF claimed in the present invention.
  • Another object of the present invention is to provide high SPF/ UVAPF sunscreen composition without compromising on the desired skin sensorial properties in water- in-oil emulsion compositions.
  • the first aspect of the invention provides for an aqueous photo-protective personal care composition comprising less than 15 % w/w total organic sunscreen comprising
  • an emollient having a Hansen Solubility Parameter between 12.4 to 22.0 MPa 1 2 at 25°C selected from the group consisting of (a) ester of alkoxylated aromatic alcohol with fatty carboxylic acid, (b) esters of polyglycols or diols with fatty carboxylic acid such as caprylic/capric triglyceride, (c) ester of fatty alcohol and fatty acid; (d) alkoxylated derivative of benzyl alcohol and mixtures thereof; and
  • a cosmetically acceptable base comprising (a) 5 to 95 % of a volatile silicone by weight of said base selected from the group consisting of octa methyl cyclo tetra siloxane, deca methyl cyclo penta siloxane, dodecamethyl cyclo hexa siloxane, blends of methyl trimethicone and dimethicone and mixtures thereof, the volatile silicone having a vapor pressure value at 25°C of 2.6 to 1400 Pa, and a heat of vaporization value of 21 to 84 kJ/mole and (b) 5 to 95% of a silicone elastomer by weight of said base.
  • a volatile silicone by weight of said base selected from the group consisting of octa methyl cyclo tetra siloxane, deca methyl cyclo penta siloxane, dodecamethyl cyclo hexa siloxane, blends of methyl trimethicone and dimethicone and
  • an aqueous photo-protective personal care composition comprising
  • an emollient having a Hansen Solubility Parameter between 12.4 to 22.0 MPa 1 2 at 25°C selected from the group consisting of (a) ester of alkoxylated aromatic alcohol with fatty carboxylic acid, (b) esters of polyglycols or diols with fatty carboxylic acid such as caprylic/capric triglyceride, (c) ester of fatty alcohol and fatty acid; (d) alkoxylated derivative of benzyl alcohol and mixtures thereof; and (iii) a cosmetically acceptable base comprising (a) 5 to 95 % of a volatile silicone by weight of said base selected from octa methyl cyclo tetra siloxane, deca methyl cyclo penta siloxane, dodecamethyl cyclo hexa siloxane, blends of methyl trimethicone and dimethicone and mixtures thereof, the volatile silicone having a
  • Another aspect of the invention provides for use of the composition of the first and second aspect for providing an SPF value of at least 10 and a UVAPF value of at least 2.
  • a Photo-protective personal care Composition as used herein, is meant to include a composition for topical application to sun-exposed areas of the skin and/or hair of mammals, especially humans. Such a composition may be generally classified as leave-on or rinse off, and includes any product applied to a human body for also improving appearance, cleansing, odor control or general aesthetics.
  • composition of the present invention can be in the form of a liquid, lotion, cream, foam, scrub, gel, soap bar or toner, or applied with an implement or via a face mask, pad or patch.
  • sunscreen compositions include leave-on skin lotions, creams, antiperspirants, deodorants, lipsticks, foundations, mascara, sunless tanners and sunscreen lotions and wash-off shampoos, conditioners, shower gels, toilet bars.
  • the composition of the present invention is preferably a leave-on composition.
  • Skin as used herein is meant to include skin on the face and body (e.g., neck, chest, back, arms, underarms, hands, legs, buttocks and scalp) and especially to the sun exposed parts thereof.
  • the composition of the invention is also of relevance to applications on any other keratinous substrates of the human body other than skin e.g. hair where products may be formulated with specific aim of providing photoprotection.
  • ⁇ High SPF sunscreen composition' is meant a composition that has an SPF higher than 10, preferably higher than 12, more preferably higher than 15.
  • ⁇ High UVAPF sunscreen composition' is meant a composition that has a UVAPF equal to or higher than 2, preferably higher than 4.
  • the SPF and UVAPF are measured using the standard protocols ISO/WD 4445 and ISO/CD 24443 respectively.
  • the invention provides for an aqueous photo-protective personal care composition
  • an aqueous photo-protective personal care composition comprising less than 15 % total organic sunscreen comprising a UVA sunscreen, a UVB sunscreen, an emollient having a specific Hansen Solubility Parameter from specified classes and a cosmetically acceptable base comprising a volatile silicone having a specific vapor pressure value and a heat of vaporization value selected from specified classes.
  • a sunscreen that has both high UV-A and UV-B sunscreen efficacy is Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine sold under the brand name
  • the UVA sunscreen is preferably a dibenzoylmethane, triazine, or benzophenone derivative.
  • the more preferred UVA sunscreen is a dibenzoylmethane derivative, the most preferred sunscreen is 4-tert-butyl-4'-methoxydibenzoylmethane.
  • the UVA sunscreen is present in 0.1 to 10 %, preferably 0.1 to 5 %, more preferably 0.4 to 3 % by weight of the composition.
  • the UV-B sunscreen is preferably selected from the class of benzophenones, anthranilates, salicylates, cinnamates, camphores, benzylidene malonate, triazone or derivatives thereof.
  • UV-B sunscreen/stabilizer is from the class of diphenyl acrylic acid derivatives.
  • One commercially available sunscreen from this class is sold as OctocryleneTM.
  • the most preferred UV-B sunscreen is from the class of cinnamates preferably 2-ethylhexyl-p-methoxycinnamate.
  • the UVB sunscreen is present in 0.1 to 10 %, preferably 1 to 7 %, more preferably 2 to 5 % by weight of the composition.
  • the weight ratio of UVA:UVB sunscreen present in the composition of the present invention is in the range of 1 :1 to 1 :1 .5.
  • the amount of UVA and/ or UVB sunscreen is outside this range it is found that there is a higher tendency for the UVA sunscreen to crystallize out of the composition when present in the higher ranges. It is difficult to obtain the desired balance between SPF and UVAPF values when the UVA sunscreen is present in the lower ranges.
  • composition of the invention comprises 3 to 50 % of an emollient having a Hansen Solubility Parameter between 12.4 to 22.0 MPa 1 2 at 25°C selected from (a) ester of alkoxylated aromatic alcohol with fatty carboxylic acid, (b) esters of polyglycols or diols with fatty carboxylic acid such as caprylic/capric triglyceride, (c) ester of fatty alcohol and fatty acid; (d) alkoxylated derivative of benzyl alcohol and mixtures thereof Examples of these classes and the brand names with which they can be obtained are:
  • each molecule is given three Hansen parameters, each generally measured in MPa 0 5 : ⁇ i The energy from dispersion forces between molecules
  • EqA E E D + E p +E E can be experimentally measured by determining the energy required to evaporate the liquid, thus breaking all of its cohesion bonds in the process.
  • Equation 1 by the moiar volume, V, gives the respective Hansen cohesion energy (solubility) parameters according to Eq. 4.
  • the total cohesion energy divided by the molar volume is the total cohesion energy density.
  • the square root of this is the Hildebrand total solubility parameter, ⁇ .
  • the SI units for all of these are MPa 1 ⁇ 2 .
  • the emollient is preferably present in higher than 3% but less than 50%, more preferably 4 to 12 %, further more preferably 5 to 7 % by weight of the composition.
  • the Hansen solubility parameter of the emollient is preferably in the range of 16 to19 MPa 1/2 more preferably 18.2 to 18.8 MPa 1/2 .
  • the cosmetically acceptable base comprises 5 to 95 % of a volatile silicone by weight of said base, having a vapor pressure value at 25°C of 2.6 to 1400 Pa, and a heat of vaporization value of 21 to 84 kJ/mole.
  • the volatile silicone meeting the above specification of vapour pressure and heat of vaporization ensures that the heat absorbed from the substrate (e.g. skin) is such as to have the desired sensory perception of cooling while ensuring the desired UV protection and composition stability.
  • the preferred volatile silicones are (a) decamethyl cyclopentasiloxane (commercially known as D 5 available from Dow Corning DC245); (b) dodecamethyl
  • cyclohexasiloxane (commercially known as D 6 and available from Dow corning); (c) TMF-1.5 (INCI: Methyl Trimethicone); (d) DM-Fluids-A 6 (INCI: Dimethicone); (e) DM- Fluid-2cs (INCI: Dimethicone); (f) SF1000N1 (INCI: Trisiloxane (1 cSt); (g) SF1000N1.5 (INCI: Dimethicone (1 .5cSt); (h) SF1000N2 (INCI: Dimethicone (2 cSt); and DM-Fluid- 5cSt (INCI: Dimethicone).
  • volatile silicones are (a) decamethyl cyclopentasiloxane (commercially known as D5 available from Dow Corning DC245; (b) DM-Fluid-2cs; and (c) DM- Fluid -5 est (INCI: Dimethicone).
  • the volatile silicone is preferably present in 10 to 23 %, more preferably in 19 to 22 % 10 by weight of said composition.
  • the cosmetically acceptable base comprises 5 to 95%, preferably 5-50 % silicone elastomer, more preferably 10 to 30 % by weight of the base. Silicone elastomer is preferably present in 1 to 15 % by weight of the composition.
  • Silicone elastomers differ from linear polymers because of cross-linking. Many silicone elastomers are made from linear silicone polymers that contain reactive sites along the polymer chain. Elastomers have very different physical and chemical properties from linear polymers, and the properties of elastomers depend very much
  • DC 9045 a dimethicone crosspolymer commercially available from Dow Corning.
  • DC 9045 is chemically a blend of cyclopentasiloxane swelling agent and dimethicone crosspolymer (12-13 %).
  • the swelling agent is most preferably a silicone fluid or a functional silicone fluid.
  • the 30 swelling agent is preferably used in an amount which is in a weight ratio of 1 :10 to 10:1 , more preferably 1 :1 to 5:1 with respect to the reaction mixture where the silicone elastomer is prepared.
  • Swelling agent is most preferably low molecular weight silicone oil which includes (i) low molecular weight linear and cyclic volatile methyl siloxanes, (ii) low molecular weight linear and cyclic volatile and non-volatile alkyl and aryl siloxanes, and (iii) low molecular weight linear and cyclic functional siloxanes. Most preferred, however, are low molecular weight linear and cyclic volatile methyl siloxanes (VMS).
  • VMS low molecular weight linear and cyclic volatile methyl siloxanes
  • DC 9027 (a blend of an ultra high viscosity dimethiconol and silicone elastomer in cyclopentasiloxane) available from Dow Corning
  • DC 9546 (a blend of high molecular weight silicone elastomer
  • composition comprises 0.1 to 5 % oil soluble film forming polymer by weight of the composition.
  • Suitable film forming polymer is selected from the class of polyacrylates, polyamides, or polyvinyl alcohols which may be defined by the general formula given below:
  • R1 C1 to C30 chain: For solubilization of sunscreens
  • R1 may be saturated or unsaturated, branched or cyclic,
  • the terminal groups at either end may be a hydroxyl or a carboxyl group.
  • film forming polymers or oil thickeners examples include Dow Corning® FA 4002 ID Silicone Acrylate (INCI: Isododecane (and) Acrylates/ Polytrimethylsiloxymethacrylate Copolymer); and c10-30 alkyl acrylate. Most preferred polymers are the one which are capable of thickening oil phase or cosolubilizing oil phase.
  • composition preferably comprises 10 to 70 %, more preferably 30 to 50 % water by weight of the composition.
  • the composition is a water-in-oil composition.
  • Inorganic sunblocks may be preferably used in the present invention. These include, for example, zinc oxide, iron oxide, silica, such as fumed silica, or titanium dioxide. The total amount of sun block that is preferably
  • the composition of the invention may additionally comprise a skin lightening agent.
  • the skin lightening agent is preferably chosen from a vitamin B3 compound or its derivative e.g. niacin, nicotinic acid, niacinamide or other well known skin lightening agents e.g.
  • Vitamin B3 compound or its derivative e.g. niacin, nicotinic acid, niacinamide are the more preferred skin lightening agent as per the invention, most preferred being
  • Niacinamide when used, is preferably present in an amount in the range of 0.1 to 10 %, more preferably 0.2 to 5 % by weight of the composition.
  • composition according to the invention may also comprise other diluents.
  • the diluents act as a dispersant or carrier for other materials present in the composition, so as to facilitate their distribution when the composition is applied to the skin.
  • Diluents other than water can include liquid or solid emollients, solvents, humectants, thickeners and powders.
  • the composition of the invention may comprise a conventional deodorant base as the cosmetically acceptable carrier.
  • a deodorant is meant a product in the stick, or roll- on, which are used for personal deodorant benefit e.g. application in the under-arm or any other area which may or may not contain anti-perspirant actives.
  • Deodorant compositions can generally be in the form of firm solids, soft solids, gels, creams, and liquids and are dispensed using applicators appropriate to the physical characteristics of the composition.
  • the compositions of the present invention can comprise a wide range of other optional components.
  • antioxidants examples include: antioxidants, binders, biological additives, buffering agents, colorants, thickeners, polymers, astringents, fragrance, humectants, opacifying agents, conditioners, exfoliating agents, pH adjusters, preservatives, natural extracts, essential oils, skin sensates, skin soothing agents, and skin healing agents.
  • composition of the first aspect of the invention for obtaining SPF of at least 10 and a UVAPF of at least 2.
  • SPF is preferably higher than 12, more preferably higher than 15.
  • the UVAPF is preferably higher than 4.
  • the use is preferably for non- therapeutic benefits.
  • Water-in-oil compositions as shown in 1 were prepared. The samples were stored for 7 days at 25 °C and the samples were observed visually for stability. Invitro-SPF of the various samples was measured using an Optometries 290S instrument model. The substrate used was a 8 cm Transpore tape procured from 3M Company. The sample was applied at 2 mg/cm 2 .
  • the in-vitro method employed for determination of the UVA-PF has been developed by COLIPA.
  • the film irregularity model was not used, but a relationship between parent film extinction and extinction of the film on the substrate was used.
  • an in-vitro extinction spectrum is simulated, resulting in a simulated in-vitro UVA-PF.
  • the visual appearance of the samples were observed and the SPF and UVAPF of the samples were measured and are summarized in table 1
  • Titanium dioxide (micro fine) 2.00 2.00 2.00 2.00 2.00
  • Hansen solubility parameter 6.00 - 18.2 MPa 1/2
  • compositions as shown in table 2 below were prepared.
  • compositions were measured using the procedure similar to that of example 1 to 4. The data is shown in table 2.
  • composition as per the invention provides for vastly superior SPF as compared to an anhydrous composition (example 6) that comprises emollients and volatile silicones and with high amount of sunscreens.
  • Examples 7-10 Use of polymers in the composition of the invention to thicken/ co- solublise thus providing high SPF.
  • compositions similar to Example 4 were prepared except that additionally 2 % of a polymer was included.
  • the resultant SPF is summarized in Table 3.
  • compositions similar to Example 4 were prepared except that various other organic UV-A and UV-B sunscreens were used or a single broad spectrum UV sunscreen was used.
  • the % UV-A and UV-B sunscreen remaining after UV exposure was measured and the data is summarized in Table 4.
  • the general procedure used to measure the sunscreen concentration is given below:
  • UV radiation for exposure was generated using a SPF-290S SPF meter (Optometries Corporation). Table 4
  • ⁇ refers to the molar absorption coefficient and has the units of M "1 cm "1 .
  • Table 4 The data in Table 4 above indicates that highly stable sunscreen compositions can be prepared as per the invention using various combinations of UV-A and UV-B sunscreens or using a single broad spectrum UV sunscreen. The invention thus provides for a high SPF/UVAPF sunscreen composition

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Emergency Medicine (AREA)
  • Dermatology (AREA)
  • Cosmetics (AREA)

Abstract

L'invention porte sur une composition d'écran solaire dotée d'un haut facteur de protection solaire et d'un haut facteur de protection contre les UVA. La présente invention a pour objet de fournir un facteur de protection solaire d'au moins 10 et un facteur de protection contre les UVA d'au moins 2. À cet effet, on introduit un émollient choisi dans une composition contenant l'écran solaire comportant une base cosmétiquement acceptable qui comprend une silicone volatile et un élastomère de silicone.
EP12770470.8A 2011-10-28 2012-10-03 Composition photo-protectrice aqueuse de soins personnels Not-in-force EP2771072B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12770470.8A EP2771072B1 (fr) 2011-10-28 2012-10-03 Composition photo-protectrice aqueuse de soins personnels

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IN3041MU2011 2011-10-28
EP12152054 2012-01-23
EP12770470.8A EP2771072B1 (fr) 2011-10-28 2012-10-03 Composition photo-protectrice aqueuse de soins personnels
PCT/EP2012/069535 WO2013060559A1 (fr) 2011-10-28 2012-10-03 Composition de soins d'hygiène personnelle photoprotectrice aqueuse

Publications (2)

Publication Number Publication Date
EP2771072A1 true EP2771072A1 (fr) 2014-09-03
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US (1) US20140248224A1 (fr)
EP (1) EP2771072B1 (fr)
JP (1) JP6317673B2 (fr)
CN (1) CN103889509A (fr)
CA (1) CA2850994C (fr)
EA (1) EA028222B9 (fr)
MX (1) MX353339B (fr)
WO (1) WO2013060559A1 (fr)
ZA (1) ZA201402433B (fr)

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WO2016131041A1 (fr) * 2015-02-13 2016-08-18 Peter Kennedy Composition topique de vasodilatateur
US10478466B1 (en) 2015-02-13 2019-11-19 Peter Kennedy Topical vasodilator composition
WO2016188885A1 (fr) * 2015-05-27 2016-12-01 Unilever N.V. Composition de soin personnel photoprotectrice
CN109310610B (zh) * 2016-06-10 2021-11-02 联合利华知识产权控股有限公司 个人护理组合物
MX2018015054A (es) * 2016-06-10 2019-06-17 Unilever Nv Composicion para el cuidado personal.
EA037007B1 (ru) * 2016-07-18 2021-01-26 Юнилевер Н.В. Композиция для личной гигиены
EA038079B9 (ru) * 2016-07-18 2021-09-10 ЮНИЛЕВЕР АйПи ХОЛДИНГС Б.В. Солнцезащитная композиция
JP2020029409A (ja) * 2018-08-21 2020-02-27 株式会社 ナチュラル 紫外線遮蔽性化粧用組成物
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JP2014530887A (ja) 2014-11-20
ZA201402433B (en) 2016-01-27
JP6317673B2 (ja) 2018-04-25
WO2013060559A1 (fr) 2013-05-02
EP2771072B1 (fr) 2017-12-13
US20140248224A1 (en) 2014-09-04
MX2014005095A (es) 2014-08-08
EA028222B9 (ru) 2017-12-29
MX353339B (es) 2018-01-08
EA028222B1 (ru) 2017-10-31
CN103889509A (zh) 2014-06-25
CA2850994A1 (fr) 2013-05-02
CA2850994C (fr) 2019-11-12
EA201400510A1 (ru) 2014-08-29

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